Alarge boulder falls from an underwater ledge and crashes on the floor of the ocean. a pod of dolphins is 800 meters away. determined how long it takes for the soundof the crash to reach the dolphins.
o.5 sec
o.3 sec
2.3 sec
1.9 sec

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?